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Dilute acid and enzymatic hydrolysis of sugarcane bagasse for biogas production
| Content Provider | Semantic Scholar |
|---|---|
| Author | Múrias, Maria Raquel Rodrigues, Maria Pinheiro, Vasconcelos |
| Copyright Year | 2009 |
| Abstract | Sugarcane bagasse is a cheap and abundant raw material which can be used for biogas production. However, this biomass is resistant to microbial attack and must be previously pretreated. In the present work, sugarcane bagasse was subjected to dilute sulphuric acid treatment and enzymatic hydrolysis. The acid treatment was performed in an autoclave, at 121oC with 0.95% (w/w) of acid. The parameters varied were residence time, bagasse particle size and the addition of a supplemental post-treatment incubation period. In the enzymatic reaction were tested the role of enzyme loadings and the effect of some parameters of the acid treatment in the bagasse‟s enzymatic digestibility. The most relevant products resulting from these treatments were analyzed for their biochemical methane potential. The obtained saccharifications were low, possibly due to a combination of bagasse recalcitrance and weak acid hydrolysis. Carbohydrate recovery in the acid hydrolysate was almost 40%, mostly in the form of xylose. Less than 14% of the pulp‟s total carbohydrates were hydrolyzed by enzymatic action. However, this hydrolysate possessed a good biochemical methane potential, seeming promising for biogas production. Some relevant features limiting the overall treatment effectiveness were identified, paving way for future studies to significantly improve this process. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://fenix.tecnico.ulisboa.pt/downloadFile/395139480777/dissertacao.pdf |
| Alternate Webpage(s) | https://fenix.tecnico.ulisboa.pt/downloadFile/395139418749/Extended%20abstract.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
